/Engine/Source/Runtime/Engine/Classes/Sound/SoundWave.h
If Stream Caching is enabled, this can be used to override the default loading behavior of thisUSoundWave. This can even be called on USoundWaves that still have the RF_NeedLoad flag, and won't be stomped by serialization. NOTE: The new behavior will be ignored if it is less memory-aggressive than existing (even inherited) behavior
void OverrideLoadingBehavior ( ESoundWaveLoadingBehavior InLoadingBehavior )